CN218613169U - Aeroengine pipe damage repair tool - Google Patents

Abstract

The utility model belongs to the technical field of the aeroengine pipe is repaired, especially, relate to an aeroengine pipe damage repairs frock. The grinding head is hollow, a main rod penetrates through the grinding head, and the grinding head comprises a first grinding sheet and a second grinding sheet; the main rod comprises a thread section, a clamping section and an opening section; a threaded cylinder is sleeved on the threaded section, and a sleeve which can only freely rotate is sleeved on the outer side wall of the threaded cylinder; the inner side walls of the first grinding sheet and the second grinding sheet are hinged with hinged rods, and one ends of the two hinged rods are hinged to the outer side wall of the sleeve; the left half section of first abrasive sheet and second abrasive sheet all articulates on the opening section through the connecting rod, and the open slot that runs through around the left end of opening section is seted up. The utility model discloses an adjust the position of a screw thread section of thick bamboo on the screw thread section, realize the swing angle between hinge bar and the sleeve to adjust the gradient of first abrasive disc and second abrasive disc, adjust the tapering of grinding the head promptly.

Description

Aeroengine pipe damage repair tool

Technical Field

The utility model belongs to the technical field of the aeroengine pipe is repaired, especially, relate to an aeroengine pipe damage repairs frock.

Background

The external system of the aircraft engine consists of a large number of guide pipes, the inner cone and outer cone sealing structures of the guide pipes are common pipeline connections of the aircraft engine, after the engine works for one service life, the inner cone surface of each guide pipe is mostly provided with mechanical damages such as indentation and abrasion, when the guide pipes are inspected, if the inner cone surface damage of each guide pipe cannot be repaired, the repair quality of the inner cone surface of each guide pipe is ensured, and during assembly, the guide pipes are prone to oil leakage faults.

There is the grinding head of repairing catheter inner conical surface specially among the prior art, this grinding head is the circular cone structure, lays abrasive paper on the grinding head when using, then leans on the grinding head top on catheter inner conical surface, drives the grinding head rotation through the drilling machine and grinds the restoration to catheter inner conical surface, but the gradient of grinding head conical surface among the prior art is fixed, can't adjust according to the gradient of catheter inner conical surface to the application range of this grinding head has been reduced.

SUMMERY OF THE UTILITY MODEL

According to the not enough among the above prior art, the utility model discloses the technical problem who solves is: the utility model provides an aeroengine pipe damage repair frock, when using, to the gradient difference of the interior conical surface of pipe, can adjust the gradient of grinding head.

The aircraft engine conduit damage repairing tool comprises a grinding head in a circular truncated cone structure, wherein the interior of the grinding head is hollow, a main rod which is independent of the grinding head is horizontally arranged in the grinding head in a penetrating manner, and the grinding head comprises a first grinding sheet and a second grinding sheet which are vertically distributed and are independent of each other; the main rod comprises a threaded section, the right end of the threaded section is connected with a clamping section, the clamping section and the central line of the threaded section are positioned on the same straight line, the left end of the threaded section is connected with an opening section, and the central line of the opening section and the central line of the threaded section are positioned on the same straight line; the thread section is sleeved with a thread cylinder which is matched with the thread section in a thread way, and the outer side wall of the thread cylinder is sleeved with a sleeve which can only freely rotate; hinge rods are hinged to the inner side walls of the right half sections of the first grinding sheet and the second grinding sheet, and one ends of the two hinge rods are hinged to the outer side wall of the sleeve; the left half section of first abrasive sheet and second abrasive sheet all articulates on the opening section through the connecting rod, and the open slot that runs through around the left end of opening section is seted up.

Furthermore, a wedge hole is formed in the center of the left end of the opening section, the width of the opening groove is smaller than the diameter of the wedge hole, and a wedge nail penetrates through the wedge hole.

Furthermore, clamping plates for clamping abrasive paper are fixed on the opening sections corresponding to the left side and the right side of the opening grooves.

Furthermore, the outer surfaces of the first grinding sheet and the second grinding sheet are provided with a layer of adhesion layer which can be repeatedly adhered.

Further, the adhesion layer is a 3M double-sided adhesive tape.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses an adjust the position of a screw thread section of thick bamboo on the screw thread section, realize the swing angle between hinge bar and the sleeve to adjust the gradient of first abrasive disc and second abrasive disc, adjust the tapering of grinding the head promptly.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of a portion A of FIG. 1;

FIG. 3 is a schematic front view of the structure of FIG. 1;

FIG. 4 is a left side view of the structure of FIG. 1;

FIG. 5 is a schematic diagram of the boom of FIG. 1;

names of components in the drawings: 1. first abrasive disc 2, first fixed block 3, articulated rod 4, second fixed block 5, mobile jib 5.1, centre gripping section 5.2, screw thread section 5.3, opening section 6, thread cylinder 7, sleeve 8, second abrasive disc 9, connecting rod 10, wedge nail 11, third fixed block 12, splint.

Detailed Description

The present invention is further described with reference to the following embodiments, which are not intended to limit the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Example 1

The aircraft engine conduit damage repair tool described in this embodiment, as shown in fig. 1 to 5, includes a grinding head in a circular truncated cone structure, the inside of the grinding head is hollow, and a main rod 5 independent of the grinding head is horizontally inserted into the grinding head; the central line of the main rod 5 and the central line of the grinding head are positioned on the same straight line, the left end of the main rod 5 is positioned in the grinding head, and the two are independent;

the grinding head comprises a first grinding sheet 1 and a second grinding sheet 8 which are distributed vertically and are mutually independent; the first grinding sheet 1 and the second grinding sheet 8 are two halves of a circular truncated cone which are divided into equal parts up and down, and are shown in fig. 1 and 3;

the main rod 5 comprises a threaded section 5.2, the right end of the threaded section 5.2 is connected with a clamping section 5.1, the central lines of the clamping section 5.1 and the threaded section 5.2 are in the same straight line, the left end of the threaded section 5.2 is connected with an opening section 5.3, and the central line of the opening section 5.3 and the central line of the threaded section 5.2 are in the same straight line; the main rod 5 is composed of three short parts, the clamping section 5.1 is positioned at the rightmost end, when in use, a drill chuck of a drilling machine is clamped on the clamping section 5.1, the thread section 5.2 is positioned between the clamping section 5.1 and the opening section 5.3, the three parts are arranged integrally, the central lines of the three parts are positioned on the same straight line, and the thread section 5.2 is provided with external threads;

a thread cylinder 6 in threaded fit with the thread section 5.2 is sleeved on the thread section, and a sleeve 7 which can only freely rotate is sleeved on the outer side wall of the thread cylinder 6; the inner side wall of the thread cylinder 6 is provided with an internal thread which is in thread fit with the external thread, and when the thread cylinder 6 is rotated, the thread cylinder can move left and right on the thread section 5.2 to adjust the position of the thread cylinder; during production, a section of limiting groove can be formed in the outer side wall of the threaded cylinder 6 along the circumference of the threaded cylinder, the sleeve 7 is sleeved in the limiting groove and can only rotate but cannot slide left and right, the left side wall and the right side wall of the limiting groove are both abutted against the left end wall and the right end wall of the sleeve 7, and the sleeve 7 is prevented from being sleeved in the limiting groove to generate axial looseness; when the sleeve 7 is installed, in order to sleeve the sleeve 7 into the limiting groove, the sleeve 7 can be divided into two parts which are divided into equal parts downwards, and after the sleeve 7 is sleeved in the limiting groove, the two parts of the sleeve 7 are combined and connected; when the sleeve is used, the sleeve 7 can be directly sleeved on the threaded cylinder 6, and then the limiting blocks are fixed on the outer side wall of the threaded cylinder 6 at the left end and the right end of the corresponding sleeve 7 to prevent the sleeve 7 from moving axially;

the inner side walls of the right half sections of the first grinding sheet 1 and the second grinding sheet 8 are hinged with hinge rods 3, and one ends of the two hinge rods 3 are hinged on the outer side wall of the sleeve 7; two first fixed blocks 2 which are distributed in the front-back direction are fixed on the inner side walls of the right ends of the first grinding sheet 1 and the second grinding sheet 8, and first hinge holes which are communicated in the front-back direction are formed in the first fixed blocks 2; two second fixed blocks 4 which are distributed front and back are fixed on the outer side wall of the sleeve 7 corresponding to each two first fixed blocks 2, second hinge holes which are communicated front and back are formed in the second fixed blocks 4, during installation, one end of a hinge rod 3 is positioned between the two first fixed blocks 2, penetrates through the hinge rod 3 through a first hinge shaft and is arranged in the first hinge hole in a penetrating mode to be hinged with the first fixed blocks 2, the other end of the hinge rod is positioned between the two second fixed blocks 4, and is hinged to the second fixed blocks 4 through second hinge shafts to swing left and right; the first fixed block 2 and the second fixed block 4 are positioned on the same plane;

the left half sections of the first grinding sheet 1 and the second grinding sheet 8 are hinged on the opening section 5.3 through a connecting rod 9; two third fixing blocks 11 which are distributed in a front-back manner are fixed on the opening section 5.3 corresponding to each connecting rod 9, one end of each connecting rod 9 is fixed on the corresponding first grinding sheet 1 or second grinding sheet 8, and the other end of each connecting rod 9 is positioned between the two third fixing blocks 11 and hinged through a third pivot; the third fixed block 11, the first fixed block 2 and the second fixed block 4 are positioned on the same plane; the second fixed block 4 and the sleeve 7 are integrally arranged, the first fixed block 2 and the first grinding sheet 1 are integrally arranged, and the first grinding sheet 1 and the connecting rod 9 are integrally arranged; the left end of the opening section 5.3 is provided with an open slot which penetrates through the front and the back; the open slot is arranged on the open section 5.3 and communicated with the front and the back, and when in use, sand is clamped in the open slot for fixing;

in the practical use process, a drill chuck of a drilling machine is clamped at a clamping section 5.1 to drive a first grinding sheet 1 and a second grinding sheet 8 to rotate, one end of abrasive paper is fixed in an open slot, the rest parts of the abrasive paper are paved on the outer surfaces of the first grinding sheet 1 and the second grinding sheet 8, then the inner conical surface of a conduit is attached to the surfaces of the first grinding sheet 1 and the second grinding sheet 8, and the inner conical surface of the conduit is ground through the rotation of the first grinding sheet 1 and the second grinding sheet 8; in the use process, staff can adjust the tapering of first abrasive disc 1 and second abrasive disc 8 to the gradient difference of pipe internal cone, and its regulation mode is through the position of rotatory screw thread section of thick bamboo 6 on screw thread section 5.2 of rotatory screw thread section of thick bamboo 6 regulation, and sleeve 7 only makes lateral motion, can adjust the gradient of first abrasive disc 1 and second abrasive disc 8.

Example 2

In this embodiment, as shown in fig. 1 and fig. 2, a wedge hole is formed in the center of the left end of the opening section 5.3, the width of the opening groove is smaller than the diameter of the wedge hole, and a wedge pin penetrates through the wedge hole; in the in-service use in-process, establish the abrasive paper card in the open slot after, the accessible is nailed in the wedge nail at the downthehole wedge, makes the abrasive paper card establish in the open slot more tightly, has avoided first abrasive disc 1 and second abrasive disc 8 to produce the friction when rotatory with the pipe inner cone surface and makes abrasive paper drop from the open slot.

Example 3

In this embodiment, as shown in fig. 4, clamping plates 12 for clamping sand paper are fixed on the opening sections 5.3 corresponding to the left and right sides of the opening groove; the purpose of splint 12 is in order to increase the centre gripping area that open slot centre gripping abrasive paper is right, and splint 12 is the wall parallel and level of upper and lower distribution and centre gripping end and open slot, establishes the abrasive paper card in the open slot when using to receive and be the centre gripping of centre gripping complex splint 12, make the abrasive paper centre gripping have better stability in the open slot.

Example 4

In this embodiment, the outer surfaces of the first polishing sheet 1 and the second polishing sheet 8 are provided with a repeatedly-adhesive layer; when in use, the back surface of the sandpaper can be adhered to the outer surfaces of the first grinding sheet 1 and the second grinding sheet 8 through the adhesive layer, so that the sandpaper can be laid on the first grinding sheet 1 and the second grinding sheet 8 to be fixed, and the embodiment can be combined with the embodiment 2 and the embodiment 3.

Example 5

This example further illustrates the technology, where the adhesion layer is a 3M double-sided tape; the 3M double faced adhesive tape is current product, and the 3M double faced adhesive tape has can used repeatedly, does not leave the vestige, viscosity can change according to the requirement of oneself, peels off relatively easily, etc. and when using, pastes abrasive paper on first abrasive sheet 1 and second abrasive sheet 8, can peel off waste abrasive paper from the 3M double faced adhesive tape when abrasive paper uses, pastes new abrasive paper again and uses.

Claims (5)

1. The utility model provides an aeroengine pipe damage repairs frock, is including the grinding head that is the round platform structure, and the inside of grinding head is the cavity setting, and the level is worn to be equipped with mutually independent mobile jib (5) with it in the grinding head, its characterized in that: the grinding head comprises a first grinding sheet (1) and a second grinding sheet (8) which are distributed vertically and are independent of each other; the main rod (5) comprises a threaded section (5.2), the right end of the threaded section (5.2) is connected with a clamping section (5.1), the central lines of the clamping section (5.1) and the threaded section (5.2) are in the same straight line, the left end of the threaded section (5.2) is connected with an opening section (5.3), and the central line of the opening section (5.3) and the central line of the threaded section (5.2) are in the same straight line; a thread cylinder (6) in threaded fit with the thread section (5.2) is sleeved on the thread section, and a sleeve (7) which can only freely rotate is sleeved on the outer side wall of the thread cylinder (6); the inner side walls of the right half sections of the first grinding sheet (1) and the second grinding sheet (8) are hinged with hinged rods (3), and one ends of the two hinged rods (3) are hinged on the outer side wall of the sleeve (7); the left half sections of the first grinding sheet (1) and the second grinding sheet (8) are hinged on the opening section (5.3) through a connecting rod (9), and the left end of the opening section (5.3) is provided with an open slot which is penetrated in the front and back direction.

2. The aircraft engine conduit damage repair tooling of claim 1, wherein: the center of the left end of the opening section (5.3) is provided with a wedge hole, the width of the opening groove is smaller than the diameter of the wedge hole, and a wedge nail is arranged in the wedge hole in a penetrating way.

3. The aircraft engine conduit damage repair tooling of claim 1, wherein: clamping plates (12) for clamping abrasive paper are fixed on the opening sections (5.3) corresponding to the left side and the right side of the opening grooves.

4. The aircraft engine conduit damage repair tooling of claim 1, wherein: the outer surfaces of the first grinding sheet (1) and the second grinding sheet (8) are provided with an adhesion layer which can be repeatedly adhered.

5. The aircraft engine conduit damage repair tooling of claim 4, wherein: the adhesion layer is 3M double faced adhesive tape.

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